Games like Space Empires I

Games like Space Empires I include Stellaris, Sid Meier’s Civilization® VI, Sid Meier's Civilization®: Beyond Earth™, Heroes of Might and Magic: Olden Era, and Age of Wonders: Planetfall. We matched them by the tags players give Space Empires I on Steam (Strategy, Exploration, Management, Turn-Based Strategy, and 4X): closest matches first, and among equally close ones the better-known games.